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Casing head 
Tubing head 
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Wellhead assembly 
Slab gate valve 
Exp. gate valve 
Mud gate valve 
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Check valve 
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Choke manifold 
Kill manifold 
 
Certificate
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Occupational Health Safety Certificate
Environmental Management System Certificate
PetroChina network card
PetroChina network card(1)
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PetroChina network card(6)
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